Suppose you collect data for IBMs sales and dollars spent on advertising and then compute the following

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Suppose you collect data for IBM’s sales and dollars spent on advertising and then compute the following statistics: image text in transcribed

(a) Compute the correlation coefficient between advertising dollars and sales.

(b) Calculate the coefficient of determination that would result from a regression of sales on advertising dollars.

(c) Calculate the regression parameters a and b.

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Statistics For Business And Financial Economics

ISBN: 9781461458975

3rd Edition

Authors: Cheng Few Lee , John C Lee , Alice C Lee

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Question Posted: Feb 19, 2024 02:15 AM

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Suppose you collect data for IBMs sales and dollars spent on advertising and then compute the following

Question:

Cov(sales, advertising $) = 22 Var(sales) = 10 Var(advertising $) = 64 Mean sales = 100 Mean advertising $ = 20

Step by Step Answer:

Given Meansales 100 Meanadvertising 20 Calculating a a 100 0344 20 a100 a 9312 688 So the regression ...View the full answer

Statistics For Business And Financial Economics

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